Shuttle-check for looms.



No. 760,929. I PATENTED MAY 24, 1904..

W. SIMMS. V

SHUTTLE CHECK FOR LOOMS. APPLIOATION nun 15.8. 5'. 1904.

H0 MODEL.

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UNITED STATES Patented May 24, 1904.

PATENT OFFICE.

WILLIAM SIMMS, or COLUMBIA, SOUTH CAROLINA, ASSIGNOB TO DRAPER coMPANY, OF HOPEDALE, MASSAoHUSErrS, A CORPORA- TION or MAINE.

SHUTTLE-CHECK FOR Looms.

SPECIFICATION forming part of Letters Patent No. 760,929, dated May 24, 1904.

Application In March 5,1904. Serial No. 196,645. (No model.)

To all whom it may concern:

Be it known that I, WVILLIAM SIMMS, a citizen of the United States, and'a resident of Golumbia, county of Richland, State of South Carolina, have invented an Improvement in Shuttle-Checks for Looms, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention has for its object the production of means for checking the movement of the incoming shuttle as it enters the shuttle-box of a loom, so that as the shuttle approaches home position or the end ofits movement the tension of the binder-controlling spring will be increased, preventing rebound of the shuttle.

In the present embodiment of my invention the impact of the incoming shuttle upon the binder primarily moves the latter outward against the action of its controlling-spring, and

thereaftera secondary movement is imparted to the binder by or through the picker, increasing the tension of'the controlling-spring and making the binder effective to stop the shuttle without rebound.

Figure '1 is a top or plan view of the Shuttle tion applied thereto. Fig. 2 is arear elevation thereof. Fig. 3 is a View similar to Fig. 1, but partly broken out and showing the operative parts in position to stop the shuttle at the home position; and Fig. 4 is a detail showing the binder in longitudinal section and the movable swell and other parts in elevation.

I "The lay- A having a shuttle-box thereon,

comprising a fixed front wall B, back wall B, binder B fulcrumed at its outer end on astud 6*, the top or cover-plate B binder-controlling spring S Fig. 2, fast at one end and at its other end secured to the protector rock-shaft P, and the upturned finger P, carried thereby and at its upper end engaging the free end of the binder, may be and are all of usual or wellknown construction, the lay being longitudinally slotted at 10 for the Staff P of the picker P as is usual.

In accordance with my invention the binder B which may conveniently be made of metal,

has a rearwardly-extended lug 7) at or near its fulcrum, provided with ahole 2, Fig. 4, and the impact-wall of the binder is cut away or apertured at Z) to receive a movable swell D.

As best shown in Figs. 3 and 4, the swell is cut away or reduced at (F, so that the larger portion may fit against the shoulder b in the aperture 6 of the binder.

A rearward extension (1 on the swell at its outer end receives an upright fulcrum-pin 5, Fig. 4, sustained by the binder and on which the swell can rock, the extension terminating in a lug d, having a hole 3 through it. (See dotted lines, Figs. 3 and 4.) Referring to said figures, the binder is provided with a second upright pin 6 in advance of the inner end of the aperture 6, on which pin is mounted a cam or rocker c, havinga rearward extension or lng c at its rear or free end provided with a hole 7, the cam being preferably faced with leather, as at 0 When the shuttle is out of the box, the swell D occupies the position shown in Figs. 1 and 4, its face forming a continuation of the shuttle-engaging face of the binder, the cam a resting substantially flat againstthe back of the swell D. A rod e is loosely extended through the several holes 2, 3, and 7 in the lugs b, d, and c, the inner end of the rod having fast upon it a collar e with a washer 8 interposed between it andthe adjacent lug 0. Between the lugs c andd a spiral expansion-spring 8X surrounds the rod, and the outerend of the latter is bent downward at eto sustain a bunter 9 ad justably secured in place by a set-screw 9 and projecting across the path of the picker, the bunter resting upon the top of the lay. The inner face of the hunter is notched at e to form a seat for the When the shuttle S enters the shuttle-box, its shoulder engages the swell-face 5 of the binder and the adjacent portion of the face of the movable swell and throws the binder and swell outward against the action of the bindercontrolling spring S. The shuttle continues on into the box, hits the picker P and throws it outward by the force of the impact, and the picker in turn engages the bunter and moves it and the rod 6 in the direction of arrow 20, Fig. 2. Such quick movement of the rod acts through the collar e to turn the cam c on its fulcrum and presses the cam against the back of the free end of swell D; but inasmuch as the face of the swell is then in contact with the side of the shuttle such action of the cam operates to impart a further or secondary outward movement to the binder. This is shown in Fig. 3. The secondary movement so given to the binder acts through the binder-finger P to increase the tension of the controllingspring S so that an additional pressure is thereby exerted upon the shuttle through the binder as the shuttle approaches the home position. This increase of tension of the spring acts to prevent rebound of the shuttle as it reaches the end of its movement, and by reference to Fig. 3 it will be seen that at such time the free end of the movable swell D is pressed against the shuttle side, while the face of the binder between its fulcrum and the fulcrum of the swell presses against the shoulder of the shuttle.

Even though the primary outward movement of the binder be considerable and the shuttle is well into the box before the binder returns the checking action is effective by reason of the operation of the movable swell, as has been described. The spring s restores the swell D and the cam-actuator and cam to normal position as soon as the shuttle is shot from the box on the following pick.

The construction and arrangement shown and described may be varied or modified in different particulars by those skilled in the art without departing from the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a loom, a picker, a shuttlebox, a binder, a controllingspring therefor, and means, including a member actuated by impact of the picker, to increase the tension of said spring as the shuttle approaches home position.

ber mounted on and movable relatively to the binder and adapted to bear against the shuttle.

3. In a loom, a shuttle-box, a binder, a controlling-spring therefor, and means governed by or through the incoming shuttle to change the tension of said spring proportionately to the momentum of the shuttle, said means including a member movable with and also relatively to the binder, and devices to effect such relative movement after initial movement of the binder by impact of the shuttle.

4. In a loom, a shuttle-box, a binder, a controlling-spring therefor, and means governed by or through the incoming shuttle to change the tension of said spring proportionately to the momentum of the shuttle, said means including a swell fulcrumed on the binder and in the path of the incoming shuttle, to primarily move the binder against the action of its spring, and devices operatively connected with and to move the swell against the shuttle and thereby impart a secondary movement to the binder to increase the action of its spring as the shuttle approaches the end of its movement.

5. In a loom, a picker, a shuttle-box, a binder, a controlling-spring therefor, a swell fulcrumed on the binder in the path of the incoming shuttle, to primarily move with the binder and throw the latter outward against the action of its spring, and means on the binder to rock the-swell on its fulcrum, said means including a member in the path of the picker, :impact of the shuttle on the latter acting through said means to rock the swell against the shuttle and impart a secondary outward movement to the binder and increase the action of its spring.

6. In a loom, a picker, a shuttle-box, a binder, a controlling-spring therefor, a swell fulcrumed at its outer end on the binder, a cam on the binder to act against the free end of the swell, and a cam-actuator on the binder operated by the picker when struck by the shuttle, the incoming shuttle engaging the swell and thereby moving the binder out against the action of its spring, impact of the shuttle thereafter on the picker causing the cam to act upon the swell and press the same against the shuttle, to impart asecondary outward movement of the binder against and thereby increasing the action of its spring as the shuttle approaches home position.

In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

WVILLIAM SIMM S.

,VVitnesses:

BRUCE RILEY, L. C. KNOX. 

